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NWO KCCD1 --rr=KH <br /> CER TIFICA TE OF ANALYSIS <br /> TO: William Little Friday,November 05, 1999 <br /> Advanced GeoEnvironmental, <br /> 4005 N. Wilson Way <br /> Stockton, Ca. 95205 <br /> Sample Information <br /> Sample ID: PE6331-02 Sample Type: Grab <br /> Sample Description: PRE-OX Project Name: Elkhorn SVE <br /> DatelTimeSanipled. 11/1/992.S0:00PM <br /> Sample Matrix: Air <br /> ANALYTICAL RESULT QA/QC REPORT <br /> Date LCS Spike MS Spike <br /> Test Parameter Method DLR Unit Result Blank Conc. LCS% Conc. MS% MSD RSD <br /> yzed <br /> JAnal <br /> TPH-Gasoline EPA 801 5M/DHS 50 Ug/1- 1.40 <br /> 04-Nov-99 NO 5 110.0% 5 116.0% 118.0% 0.4% <br /> Methyl t-Butyl Ether(MtBE) EPA8260 0.5 ug/L ND 04 Nov 99 ND 15 <br /> .0% 15 133.3% 1067% 5.6% <br /> Benzene <br /> EPA 8260 0,5 ug/L NE) 04-Nov-99 IND 8 97.3% 8 125.0% 97�5% 6.2% <br /> Toluene EPA 8260 0.5 ug/L 18.0 04-Nov-99 ND 8 95.9% 8 97-5% 988% 0.3% <br /> I Ethylbenzene EPA 8260 0-5 ugIL 5.3 04-Nov-99 ND 8 95.9% 8 106.3% 102.5% 0.9% <br /> Xylene(Total) <br /> EPA 8260 05 ug/L 36.0 1 04-Nov-99 ND 16 95.5% 16 112.5% 125,0% <br /> 'I, =milligrams per bier-p1m) DLR-Defeclioir Lwif(for the Mirpo.5c of Reporting. 1-c'.prescal rel Percent different(RPD)bctnver7 duplicates spike o swnple.y <br /> i(g'L micrograms per b17 <br /> iei - 1)b Lxcep(iowd sample alrices Or ro'sull 112 or Duplicate qfSample <br /> C=Compauie G -Grab higher deleOiun limits ;1fS/'J1fSD-measure Gfrhe percent recovvy efIrcicocies withuy the marrix <br /> LCS-measure ofthe perccat recover}'qfrhe Laboratory Confrol Spike(LCS) <br /> REU4tTFU f ITTED, <br /> Jonathan Hao V. Le, Laboralog Director <br /> Page I of] <br /> Suite A Stockton, CA 95204 Tel.: (209) 462-0892 Fax: (209) 462-7935 <br />